All Questions
23
questions
0
votes
0
answers
45
views
NixOS QEMU VM does not appear in `virsh` on Debian
I am running the Nix package manager on a Debian system.
On this Debian system, I use Nix to start a QEMU VM running NixOS, following this tutorial: https://github.com/pdtpartners/nix-snapshotter#...
- 163
1
vote
0
answers
103
views
Running VMs and virsh command from qemu build from source
I am trying to build QEMU from source using the instructions given here. I am trying to implement a research paper which adds features to the migration mechanism of QEMU and so I need a custom build(...
- 11
0
votes
0
answers
22
views
Virsh Local vs SSH [duplicate]
I log in as user on a host machine and run virsh list --all and get the below:
Id Name State
----------------------------------
13 win10 running
14 OpenSuse ...
- 1
0
votes
1
answer
1k
views
qemu-system-x86_64 not found when moving VMs between computers
I am moving GNOME Boxes virtual machines from Fedora to Guix following the guide on Fedora wiki.
On the Fedora workstation:
$ virsh list --all
Id Name State
-------------------------------...
- 2,346
1
vote
1
answer
10k
views
How to tell qemu to use a specific MAC adderss on a network bridge?
When I create a VM using virt-install, the VM gets connected to the virbr0 network interface automatically by generating this XML configuration:
<interface type="network">
<source ...
- 897
0
votes
1
answer
424
views
How to open (not only start) virtual machine from CLI
Installed qemu kvm, created Windows10 vm and I can start and open it from the GUI. Exited (quit, not close) KVM GUI.
# virsh list --all
Id Name State
------------------------
- win10 shut ...
- 1
0
votes
0
answers
90
views
QEMU Guest IO Errors with Raw Image Once a Week
I am seeing a strange issue with virtual machines running on my server where once a week they will stall. Every Monday Morning PDT, the services running on the VMs will freeze up (for example, nginx, ...
- 1
1
vote
2
answers
5k
views
Why does `virsh console x` hang on "Escape character is ^]"? (qemu-kvm)
The company where i start working for 2 months ago have an old hypervisor running with a few virtual machines. I logged in into one of the machines (at that point i did not know it was a virtual one) ...
- 211
0
votes
1
answer
865
views
virsh / qemu external snapshots fail with more than one disk
I am running into this problem and have found no answer in my research. There is a similar post on SuperUser that hasn't had a comment, much less an answer, in close to 10 months. Maybe that is not ...
2
votes
1
answer
7k
views
Why does my QEMU/KVM virtual machine not start after CentOS 7.7 update?
After an automatic update of CentOS to version 7.7 on Sep 17 2019 my QEMU/KVM virtual machines do not start when I reboot the hypervisor server.
Trying to start the VM by hand gives this error:
# ...
- 8,924
0
votes
1
answer
311
views
propagate virtualized Ethernet interface link status from qemu guest to host
Is it possible to propagate Ethernet interface link status from guest to host, i.e if one does ip l set dev eth0 down in guest, then something is triggered in host? virsh domif-getlink <domain> &...
- 7,636
2
votes
1
answer
1k
views
Set L2 cache for QEMU qcow2 disk in virsh XML
In the QEMU commandline you can set a L2 cache for a disk using l2-cache-size=10M
This option is not supported in Virsh XML but it should be able to use the XML element <qemu:commandline> but I ...
- 699
-1
votes
1
answer
1k
views
Is KVM a hypervisor?
https://en.wikipedia.org/wiki/Hypervisor#Classification says QEMU is type 2 hypervisor, and KVM can be both type 1 and 2 hypervisor:
The distinction between these two types is not always clear. ...
- 103k
2
votes
1
answer
734
views
How can I not give a virtual graphics card at all to your VM and have the console on serial?
Stéphane Chazelas wrote that Can I start Debian on a text virtual console in a virtual machine?
You could also not give a virtual graphics card at all to your VM and
have the console on serial. ...
- 103k
0
votes
1
answer
4k
views
Why is a machine of type i440fx created when I specify q35 and how do I get q35 to work?
I need to create a Windows VM with a Q35 machine type. However, in spite of specifying q35, and i440fx machine is created.
created with:
sudo virt-install \
--name wintest \
--boot uefi \
--ram ...
- 819